Assume the readings on thermometers are normally distributed with a mean of 0degrees°c and a standard deviation of 1.00degrees°c. find the probability that a randomly selected thermometer reads between negative 2.25−2.25 and negative 1.51−1.51 and draw a sketch of the region.

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.